Pill costs vary massively depending on the pill, they are made in anything from 50mg to 300 my, the counterfiet pills are very likely to leave you with heart damage, but there is no excuse for unknowingly buying them as the differences are easy to notice and avoid. You are most likely to pick these up in dingy colmados. You mention street hustling Viagra? Never heard of people on the streetdealing in Viagra or any other blood circulation enhancer, smack and crack on every street but Viagra hustling is new to me. Like I said though, there probably is a law against selling any drugs without a trade license of some description.